Shopping assistant with account balance limit display

A system comprising:

• one or more machine readable media having instructions stored thereon;
• and
• one or more hardware processors configured to, in response to execution of the instructions, cause the system to perform operations comprising:
• receiving a search request, during a browsing session from a user via a device having a user interface, for items listed for sale in a publication network that includes a plurality of e-commerce sites;
• causing a display, via the user interface of the device, of a balance amount of an account available to the user to make purchases via the plurality of e-commerce sites, the account being maintained by a payment service provider that is independent of the plurality of e-commerce sites, the balance amount being continuously visible on the user interface as two or more of the plurality of e-commerce sites are visited and displayed on the user interface during the browsing session;
• based on the balance amount, limiting search results to the search request to include at least one item having a price less than the balance amount;
• causing data representing the at least one item to be displayed in the user interface by presenting a page, of a particular e-commerce site, that includes a sales listing of the at least one item;
• adding the at least one item to a virtual shopping cart associated with the payment service provider in response to a request from the user;
• and
• subsequent to adding the at least one item to the virtual shopping cart, causing display, via the user interface of the device, of a revised account balance of the account based on a potential purchase of the at least one item.

One or more non-transitory machine-readable media having instructions stored thereon that, in response to execution by one or more hardware processors, cause a system to perform operations, the operations comprising:

• receiving a search request, during a browsing session from a user via a device having a user interface, for items listed for sale in a publication network that includes a plurality of e-commerce sites;
• causing a display, via the user interface of the device, of a balance amount of an account available to the user to make purchases via the plurality of e-commerce sites, the account being maintained by a payment service provider that is independent of the plurality of e-commerce sites, the balance amount being continuously visible on the user interface as two or more of the plurality of e-commerce sites are visited and displayed on the user interface during the browsing session;
• based on the balance amount, limiting search results to the search request to include at least one item having a price less than the balance amount;
• causing data representing the at least one item to be displayed in the user interface by presenting a page, of a particular e-commerce site, that includes a sales listing of the at least one item;
• adding the at least one item to a virtual shopping cart associated with the payment service provider in response to a request from the user;
• and
• subsequent to adding the at least one item to the virtual shopping cart, causing display, via the user interface of the device, of a revised account balance of the account based on a potential purchase of the at least one item.